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Related Concept Videos

Perception of Sound Waves01:01

Perception of Sound Waves

4.7K
The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
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Sound as Pressure Waves01:17

Sound as Pressure Waves

3.4K
Sound waves, which are longitudinal waves, can be modeled as the displacement amplitude varying as a function of the spatial and temporal coordinates. As a column of the medium is displaced, its successive columns are also displaced. As the successive displacements differ relatively, a pressure difference with the surrounding pressure is created. The gauge pressure varies across the medium.
The pressure fluctuation depends on the difference in displacements between the successive points in the...
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Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

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The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
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Impression Management Techniques IV: Altercasting01:14

Impression Management Techniques IV: Altercasting

265
Altercasting is a strategic communication technique in which an individual imposes a specific identity or social role onto another person to influence their behavior and shape the interaction. By presuming a role—such as “responsible leader” or “patient person”—altercasting encourages the target to conform to that identity, often aligning their behavior with the expectations associated with the role. The power of this tactic lies in its subtlety; once a role...
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Sound Waves: Resonance01:14

Sound Waves: Resonance

2.8K
Resonance is produced depending on the boundary conditions imposed on a wave. Resonance can be produced in a string under tension with symmetrical boundary conditions (i.e., has a node at each end). A node is defined as a fixed point where the string does not move. The symmetrical boundary conditions result in some frequencies resonating and producing standing waves, while other frequencies interfere destructively. Sound waves can resonate in a hollow tube, and the frequencies of the sound...
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Sound Waves: Interference00:53

Sound Waves: Interference

4.2K
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
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Related Experiment Video

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An Automated System for Sound Localization Testing in Hearing-Impaired Listeners
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An Automated System for Sound Localization Testing in Hearing-Impaired Listeners

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Positioning soundscape research and management.

Tjeerd C Andringa1, Miriam Weber, Sarah R Payne

  • 1Artificial Intelligence and Cognitive Engineering, University of Groningen, Postbus 407, 9700 AK Groningen, The Netherlands.

The Journal of the Acoustical Society of America
|October 15, 2013
PubMed
Summary
This summary is machine-generated.

Soundscape research can enhance urban planning by creating pleasant environments that promote healthy habits. Improved tools and citizen involvement are key for local soundscape optimization and better quality of life.

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Area of Science:

  • Environmental Psychology
  • Urban Planning
  • Acoustics

Background:

  • Suboptimal soundscapes negatively impact individual well-being and healthy habit adoption.
  • Current soundscape research approaches may lack sufficient local-level impact.

Purpose of the Study:

  • To explore how soundscape research can increase its local-level impact.
  • To identify future approaches for improving soundscape quality and citizen engagement.

Main Methods:

  • Analysis of the effects of sound annoyance and suboptimal soundscapes.
  • Review of existing and potential future urban planning and soundscape management practices.

Main Results:

  • A positive sensescape (sensory environment) is both pleasant and supports healthy behaviors.
  • Urban planning requires enhanced design tools for holistic optimization and stakeholder involvement.

Conclusions:

  • Transitioning from government to governance empowers local users in soundscape optimization.
  • Soundscape research should focus on designing for health and pleasant experiences, fostering citizen involvement.